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Nrrnn STATES ATENT Brion.

IIENRY J. ABERNATHY, OF SOCORRO, TERRITORY OF NEW MEXICO.

VISE.

SPECIFICATION forming part of Letters Patent No. 61 1,091, dated September 20, 1 898. Application filed May 31,1898. Serial No. 682,192. (No model- To aZZ whom it hwy concern.-

Be it known that I, HENRY J ABERNATHY, a resident of Socorro, in' the county of Socorro and Territory of New'Mexico, have invented certain new and useful Improvements in Vises; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The invention relates to attachments for benches and the like, and has for its object to provide a support for lumber adapted to cooperate with an ordinary bench-vise or other means for holding boards and similar material while they are being dressed or worked.

The invention consists in the construction hereinafter described and pointed out.

In the accompanying drawings, Figure 1 is a longitudinal section of the improved attachment applied to a bench, a portion of the latter only being indicated. Fig. 2 is a plan of the improved attachment, Fig. 3 is a section on line 33 ofv Fig. 1. Fig. 4 is a broken elevation of a bench provided with an ordinary vise and with the improved holder.

Numeral 1 denotes a bench or equivalent, and 2 an ordinary carpenters vise.

3 is a supplemental vise or lumber-holder, comprising a bar or member 4, fixed by screws 5 or otherwise to the bench, and a member or bar 6, movably connected to the bar 4. In the present instance the connection consists of a rib 011 one bar which is undercut or dovetailed in cross-section and a similarly-shaped groove in the other bar fitted to the rib and adapted to slide upon it freely. The bar 6 has a rack on its side opposite the rib and groove, and 8 denotes a retaining-pawl, preferably in the form' of a link, pivoted to the bench and adapted to engage any one of the rack-teeth and hold the bar 6 against moving down on bar 4. When-desired, the link or pawl can be turned on its pivot 9 and lifted from the rack, whereupon the bar 6 may be lowered and the link' engaged with another tooth. V

As illustrated in the present instance, the adjustable bar 6 has an integral head 10, in which is rotatably secured a thumb-screw bolt 11, which is rotatably supported in and between the cheeks 12 and 13, so as to turn freely therein While held against endWise movement by a head or shoulder 14 on one end of the bolt an'da head 15 on the other. The checks 12 and 13 may be joined by a face 16, whereby a mouth .17 is provided, within which a movable jaw 18 has a screw-thread connection with the thumbscrew 11, whereby when the screw is suitably turned the jaw can be moved back and forth between the cheeks 12 and 13. The mouth will be open on that side toward which the jaw drops when inoperative. The use of the face 16 is not essential in allcases. By this means the jaw can be made to press a board or other piece of lumber against the vertical face of the bench and holdit securely. It is especially adapted to thus hold one end of thin lumber while the other is held in an ordinary carpenters vise, preventing vibration, springing, or movement of any kind while the lumber is being dressed or cut. V Vhen not in use, the jaw turns readily on the screw and drops out of the way between the'cheeks.

More than one of theattachments may be applied to a bench. The fixed member 4 may also be adj ustably connected to the bench, so as to be moved either to or from the vise or other lumber-holder to suit difierent lengths of material held thereby. The screw 11 may have either a right or left hand thread and a handle of any suitable form and size.

The particular form'of sliding connection between the bars 4 and 6 is not essential, nor the enlargement or head 10, nor the special form of retaining-pawl, nor other mechanical details, that can be changed without altering the substantial principles of operation and construction.

The device is adapted to securely hold lumber of different thickness and width and con stitutes an adjustable board:- rest of great practical valve.

Having described my invention, What I claim is 1. An attachment for a carpenters bench or the like comprising a bar adapted to be fixed to the bench, a bar adjustably connected with said fixed bar, means for fasteningthe movable and fixed bars together, and a clamping-jaw carried by the movable bar, substantially as described.

2. An attachment for a carpenters bench or the like comprising a bar adapted to be fixed to the bench, a bar adj ustably connected with said fixed bar, means comprising a rack and pawl for fastening the movable and fixed bars together, and a clamping-jaw carried by the movable bar, substantially as described.

An attachment for a carpenters bench or the like comprising a bar adapted to be fixed to the bench, a bar ad justably connected with said fixed bar, means comprising a rack and pawl, said pawl having the form of a link and pivoted in the fixed bar for fastening the movable and fixed bars together, and a clamping-jaw carried by the movable bar, substantially as described.

4. An attachment for a carpenters bench or the like comprising a bar adapted to be fixed to the bench, a baifadj ustably connected with said fixed bar, means for fastening the movable and fixed bars together, and a clamping-jaw carried by the movable bar, said jaw having operative connection with a screw supported to turn freely in bearings in the movable bar, substantially as described.

5. An attachment for a carpenters bench or the like comprising a bar adapted to be fixed to the bench, a bar adj ustably connected with said fixed bar, means for fastening the movable and fixed bars together, and a clamping-jaw carried by the movable bar, said jaw having operative connection with a screw supported to turn freely in bearings in the movable bar, and the bar provided with a mouth or recess below said bearings to hold the jaw when inoperative, substantiallyas described.

6. Aboard-clampingattachment forabench comprising a bar to be fixed to the bench, and provided with an undercut rib, a movable jaw-carrying bar having a groove to receive the rib and having a rack on the opposite side, a link pivoted to the fixed bar and embracing the rib and movable bar and adapted to engage the rack, and devices for moving the jaw transversely to the bars, substantially as described.

7. A board-clam ping attachment forabench comprising a bar to be fixed to the bench, and provided with an undercut rib, a movable jaw-carrying bar having a groove to receive the rib, means for holding the bars adjustably together, a clamping-jaw adapted to be operatively held above the bars, and means for moving it to and from a bench to which the device is attached, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribin g witnesses.

HENRY J. ABERNATIIY.

\Vitnessos:

JOSEPH E. SMITH, THOMAS J. HUDSON. 

